摘要
本文讲述了构造双稳态按钮的三种方法,并分析了每种方法的工作原理和特点,拓展了编制PLC程序的探讨了如何利用软件实现硬件的功能,以达到节省PLC输入点的目的。
The paper narrates three kinds of methods of constructing toggle buttons, and analyzes the working principle and characteristic of each one. The paper extends the train of thought on PLC programming, also approaches how to achieve hardware, function via software in order to attain the goal of economizing PLC inputs.
